There are 90 calories in a 3/4 cup serving of cereal. How many calories are in 1 cup?
How many calories are in 6 cups?
90
3/4
=1
=6

1 cup=120 calories    6 cups=720 calories

Step-by-step explanation:

We know that there are 90 calories in 3/4 of a cup and we can figure out that 30 calories are in each 1/4 of a cup because 90 divided by 3 equals 30 then just add 30 calories to 90 and get 120.  Finally just do 120 times 6 and get 720 .

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.